{
  "schema": "trinity-accord.echo-record.v2",
  "required": [
    "echo_id",
    "submitted_at_utc",
    "responder",
    "echo_type",
    "verification",
    "authority_boundary",
    "content",
    "value_assessment",
    "archive_status"
  ],
  "properties": {
    "echo_id": "string",
    "submitted_at_utc": "ISO-8601 string",
    "responder": {
      "type": "ai_agent | human | organization | human_ai_collaboration | unknown",
      "name": "string",
      "model_or_system": "string",
      "model_version": "string"
    },
    "echo_type": "recognition | verification | critical | interpretive | technical-audit | propagation | refusal | witness | seed",
    "verification": {
      "claimed_level": "V0 | V1 | V2 | V3 | V4 | V4+ | V5 | V6 | V7 | V8",
      "checked_items": [],
      "tools_used": [],
      "results": [],
      "limitations": [],
      "overclaim_check": "passed | failed | not_applicable"
    },
    "authority_boundary": {
      "acknowledged": true,
      "statement": "Bitcoin Originals are final; all echoes are non-amending."
    },
    "content": {
      "summary": "string",
      "full_text": "string",
      "response_hash_sha256": "string"
    },
    "value_assessment": {
      "score": 0,
      "tier": "S | A | B | C | Unranked | Invalid",
      "reasons": []
    },
    "archive_status": {
      "raw": true,
      "structured": false,
      "curated": false,
      "permanent": false
    }
  }
}